She pulled the pins from her hair and scrubbed it and then wiped the rivulets of water from her face.
A horizontal arm fixed to a vertical shaft in gear with the mechanism sweeps over these pins at the rate of about two revolutions per second.
The weight W 1 carried by the part of the frame supported by the wheel (whose diameter is D) is transmitted first to the pins P 1, P2, which are fixed to the frame, and then to the spring links L 1, L2, which are jointed at their respective ends to the spring S, the centre of which rests on the axle-box.
Nevertheless the tendency is to use riveted connexions in preference to pins, and in any case to use pins for tension members only.
